diff --git a/src/calibre/devices/interface.py b/src/calibre/devices/interface.py
index 7229fc3329..1336e3c782 100644
--- a/src/calibre/devices/interface.py
+++ b/src/calibre/devices/interface.py
@@ -597,7 +597,6 @@ class DevicePlugin(Plugin):
         '''
         device_prefs.set_overrides()
 
-    # A driver should implement at most one of the set_library_info methods
     def set_library_info(self, library_name, library_uuid, field_metadata):
         '''
         Implement this method if you want information about the current calibre
@@ -606,15 +605,6 @@ class DevicePlugin(Plugin):
         '''
         pass
 
-    def set_library_info_extended(self, library_name, library_uuid, field_metadata, other_info):
-        '''
-        Implement this method if you want information about the current calibre
-        library. This method is called at startup and when the calibre library
-        changes while connected. The fourth parameter of this method is a dict
-        of other information, currently containing only the identifier patterns
-        '''
-        pass
-
     # Dynamic control interface.
     # The following methods are probably called on the GUI thread. Any driver
     # that implements these methods must take pains to be thread safe, because
diff --git a/src/calibre/devices/smart_device_app/driver.py b/src/calibre/devices/smart_device_app/driver.py
index 6b8ddd45b8..6bf0504d64 100644
--- a/src/calibre/devices/smart_device_app/driver.py
+++ b/src/calibre/devices/smart_device_app/driver.py
@@ -1563,14 +1563,13 @@ class SMART_DEVICE_APP(DeviceConfig, DevicePlugin):
         self.plugboard_func = pb_func
 
     @synchronous('sync_lock')
-    def set_library_info_extended(self, library_name, library_uuid, field_metadata, other_info):
+    def set_library_info(self, library_name, library_uuid, field_metadata):
         self._debug(library_name, library_uuid)
         if self.can_accept_library_info:
             self._call_client('SET_LIBRARY_INFO',
                                     {'libraryName' : library_name,
                                      'libraryUuid': library_uuid,
-                                     'fieldMetadata': field_metadata.all_metadata(),
-                                     'otherInfo': other_info},
+                                     'fieldMetadata': field_metadata.all_metadata()},
                                     print_debug_info=True)
 
     @synchronous('sync_lock')
diff --git a/src/calibre/gui2/device.py b/src/calibre/gui2/device.py
index 59172554b9..6de4622126 100644
--- a/src/calibre/gui2/device.py
+++ b/src/calibre/gui2/device.py
@@ -477,15 +477,8 @@ class DeviceManager(Thread):  # {{{
 
     def _set_library_information(self, library_name, library_uuid, field_metadata):
         '''Give the device the current library information'''
-        # Try both the new and the old API. This helps with device drivers that
-        # are user-installed plugins built around the old Interface class
         self.device.set_library_info(library_name, library_uuid, field_metadata)
 
-        other_info = {}
-        from calibre.ebooks.metadata.sources.prefs import msprefs
-        other_info['id_link_rules'] = msprefs.get('id_link_rules', {})
-        self.device.set_library_info_extended(library_name, library_uuid, field_metadata, other_info)
-
     def set_library_information(self, done, library_name, library_uuid,
                                  field_metadata, add_as_step_to_job=None):
         '''Give the device the current library information'''